Characteristics of clinical manifestation of Infectious bovine rhinotracheitis in Ukraine

Abstract

According to the results of the survey of cattle in 13 regions of Ukraine, it was found that 33.8% of them had circulating herpesvirus type 1 (BHV-1), which is the causative agent of infectious rhinotracheitis (IRT). The respiratory form of IRT was found in 41.7% of farms, genital and keratoconjunctivitis in 8.3%, and asymptomatic and polysymptomatic in 25.0% and 16.7%, respectively. A significant percentage of farms with asymptomatic cases is due to the almost total use of IRT vaccination. Of particular concern is the use of vaccines containing live attenuated strains of herpesvirus type 1 in the surveyed farms (66.7% of all cases), which further complicates the epizootic situation